Home / 140,627.07-194,065.43-76,965.21

Finding the Fourth Proportional to 140,627.07, 194,065.43 and 76,965.21

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Solution

The fourth proportional to 140,627.07, 194,065.43 and 76,965.21 is: 106,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,627.07 : 194,065.43 = 76,965.21 : x
  2. Step 2: Convert to fraction form
    140,627.07/194,065.43 = 76,965.21/x
  3. Step 3: Cross multiply
    140,627.07x = 194,065.43 × 76,965.21
  4. Step 4: Simplify right side
    140,627.07x = 14,936,286,188.86
  5. Step 5: Solve for x
    x = 14,936,286,188.86/140,627.07
  6. Step 6: Final answer
    x = 106,212.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.